SAXSdb — 7xa7

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Angiotensin-converting enzyme

Rhinolophus affinis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Spike protein S1 × 1 （P0DTC2） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	Spike protein S1 × 1 （P0DTC2） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 2	Spike protein S1 × 1 （P0DTC2） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 2	Spike protein S1 × 1 （P0DTC2） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A7D7FA76_RHIAI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–598； UniProt 18–615 Author chain C； PDBConstruct 1–598； UniProt 18–615 Author chain E； PDBConstruct 1–598； UniProt 18–615 Author chain G； PDBConstruct 1–598； UniProt 18–615

Spike protein S1

Severe acute respiratory syndrome coronavirus 2

UniProt P0DTC2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Angiotensin-converting enzyme × 1 （A0A7D7FA76） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	Angiotensin-converting enzyme × 1 （A0A7D7FA76） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count
3	Protein heterocomplex	Heteromer	Protein 2	Angiotensin-converting enzyme × 1 （A0A7D7FA76） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count
4	Protein heterocomplex	Heteromer	Protein 2	Angiotensin-converting enzyme × 1 （A0A7D7FA76） ZINC ION × 1 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SPIKE_SARS2
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–223； UniProt 319–541 Author chain D； PDBConstruct 1–223； UniProt 319–541 Author chain F； PDBConstruct 1–223； UniProt 319–541 Author chain H； PDBConstruct 1–223； UniProt 319–541

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	7xa7
Deposition date deposition_date	2022-03-17
Structure title title	Crystal structure of SARS-CoV-2 receptor-binding domain in complex with intermediate horseshoe bat ACE2
Keywords keywords	complex, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

7xa7__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

7xa7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7xa7__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	31.27 Å
Rg (electron density)	30.85 Å
Total Rg	31.47 Å
Atom count	6450
Residues	791
Excluded volume	114200 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7xa7__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7xa7__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`7xa7__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`7xa7__assembly_4__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	Angiotensin-converting enzyme
Molecular weight formula_weight	69714.4 kDa
EC 编号 ec_number	3.4.-.-
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C,E,G
Atom count atom_count	25842

QSTTEDRAKIFLDNFNREAEELSYQSSLASWEYNTNISDENVQKMDEAGAKWSAFYEEQSKLAKNYPLEEIQTVPVKLQLQILQQSGSPVLSEDKSKRLNSILNAMSTIYSTGKVCKPNNPQECFLLEPGLDNIMGTSKDYNERLWAWEGWRAEVGKQLRPLYEEYVVLKNEMARGYHYEDYGDYWRRDYETEESSGSGYSRDQLMKDVDRIFTEIKPLYEHLHAYVRTKLMDTYPFHISPTGCLPAHLLGDMWGRFWTNLYPLTVPFGQKPNIDVTDAMVNQGWDANRIFKEAEKFFVSVGLPNMTEGFWNNSMLTEPGDGRKVVCHPTAWDLGKGDFRIKMCTKVTMEDFLTAHHEMGHIQYDMAYATQPYLLRNGANEGFHEAVGEVMSLSVATPKHLKTMGLLSPDFLEDNETEINFLLKQALNIVGTLPFTYMLEKWRWMVFRGEIPKEEWMKKWWEMKRDLVGVVEPVPHDETYCDPASLFHVANDYSFIRYYTRTIFEFQFHEALCRIAQHDGPLHKCDISNSTDAGKKLHQMLSVGKSQPWTVTLKDIVDSRNMDVGPLLRYFEPLYTWLQEQNRKSYVGWNTDWSPYSD

Source Source

Source organism organism	Rhinolophus affinis
Common name common_name	Intermediate horseshoe bat
NCBI taxonomy ID ncbi_taxonomy_id	59477
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Spike protein S1
Molecular weight formula_weight	25122.3 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D,F,H

RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTFKCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWNSNNLDSKVGGNYNYLYRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGFQPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF

Source Source

Source organism organism	Severe acute respiratory syndrome coronavirus 2
NCBI taxonomy ID ncbi_taxonomy_id	2697049
Host organism host_organism	Homo sapiens

Entity 3 Entity 3 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	42

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Unit-cell length a length_a	63.943 Å
Unit-cell length b length_b	130.849 Å
Unit-cell length c length_c	564.829 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	orthorhombic

Resolution resolution	3.310 Å
Low-resolution limit resolution_low	40.280 Å
R factor r_factor	0.2333
R_work r_work	0.2328
R_free r_free	0.2537

Crystal structure of SARS-CoV-2 receptor-binding domain in complex with intermediate horseshoe bat ACE2

1. Protein Identity and Related Structures Protein Identity & Related Structures

Angiotensin-converting enzyme

State in the Current Structure

Other States of the Same Protein in the Database

Spike protein S1

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7xa7__assembly_1__model_1

7xa7__assembly_1__model_1 | I(q)

7xa7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)

Crystal structure of SARS-CoV-2 receptor-binding domain in complex with intermediate horseshoe bat ACE2

1. Protein Identity and Related Structures Protein Identity & Related Structures

Angiotensin-converting enzyme

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Spike protein S1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7xa7__assembly_1__model_1

7xa7__assembly_1__model_1 | I(q)

7xa7__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)